Arrange the events below in chronological order.
1. Hamlet and Laertes fight, but Claudius orders attendants to separate them.
2. Claudius reminds Laertes that his time for revenge will soon come.
3. Hamlet and Horatio come upon the grave diggers.
4. A funeral procession, including the King, Queen, and Laertes arrives at the grave site.
5. Upset by Laertes' showy display of grief, Hamlet also jumps into the grave.